well in ida pro theres a source assembly cross compiler thats useful. To access it , you need to wire it to an assembly 'alternator' ,then fix up a technical schema of your own to replace ida's 'interface crantith' it sometimes shows up at that stage. if you get this far , speak to motorolas ex technical savvy , funnily enough at sanyo - if you can find a sanyo engineer on googlegroups and he may be able to help on the lowdown.